/**
**************************************************************************************
*Founder Effect                                                                      *
*Copyright (C) 2006-2007, 5d Studios (www.5d-Studios.com)                            *
*                                                                                    *
*This library is free software; you can redistribute it and/or                       *
*modify it under the terms of the GNU Lesser General Public                          *
*License as published by the Free Software Foundation; either                        *
*version 2.1 of the License, or (at your option) any later version.                  *
*                                                                                    *
*This library is distributed in the hope that it will be useful,                     *
*but WITHOUT ANY WARRANTY; without even the implied warranty of                      *
*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU                   *
*Lesser General Public License for more details.                                     *
*                                                                                    *
*You should have received a copy of the GNU Lesser General Public                    *
*License along with this library; if not, write to the Free Software                 *
*Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA      *
**************************************************************************************
*/
#include "StdAfx.h"
#include "FadeEffect.h"
#include "../kernel.h"

extern Kernel* g_kernel;

#define TIME g_kernel->GetTime()


FadeEffect::FadeEffect(void)
{
    m_duration = 0; m_time = 0;
    SetStartColor( Vector4f(0,0,0,0) );
    m_endColor.Set( 1,1,1,1 );
}

FadeEffect::~FadeEffect(void)
{
}

/** Update the effects */
void FadeEffect::Update( long dt )
{
    if ( TIME > m_duration )
        return;

    Vector4f shift = m_endColor - m_currentColor;
    Vector4f fade  = shift * m_time;

    m_currentColor = m_currentColor + fade;
}